A coding workflow phase that implements a feature from a written plan after receiving explicit approval.

Use it to read a development plan, change or create the listed files, follow project conventions, and add unit tests.

It keeps implementation tied to an agreed plan and prevents coding from starting before review. It also makes the required tests part of the work.

dev:code — Skill for Claude Code by atournayre

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent

npx skills add atournayre/claude-marketplace --skill code

Clone the repo

git clone --depth 1 https://github.com/atournayre/claude-marketplace

Made for: Claude Code.

Or install dev, the plugin that ships this one along with the rest of its 25 skills, 8 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/atournayre/claude-marketplace/code.svg)](https://agentmods.dev/skills/atournayre/claude-marketplace/code)

Your own site

<a href="https://agentmods.dev/skills/atournayre/claude-marketplace/code"><img src="https://agentmods.dev/badge/skills/atournayre/claude-marketplace/code.svg" alt="Measured on agentmods" height="20"></a>

Per session 15 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,223 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00015	$0.01223
Opus 5	$0.00008	$0.00611
Sonnet 5	$0.00003	$0.00245
Haiku 4.5	$0.00002	$0.00122

Measured 7d ago against content hash 017b009b2214, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

dev:code scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

dev/skills/code/SKILL.md · 138 lines

What it actually says

Objectif

Phase 5 du workflow de développement : implémenter la feature selon le plan généré.

Variables

PATH_TO_PLAN: $ARGUMENTS

Instructions à Exécuter

IMPORTANT : Exécute ce workflow étape par étape :

1. Vérifier le contexte et charger le plan

Extrais PATH_TO_PLAN depuis $ARGUMENTS
Si PATH_TO_PLAN n'est pas fourni :
- Lis .claude/data/.dev-workflow-state.json avec Read
- Extrais planPath du JSON
Si toujours pas de plan, affiche une erreur et arrête

2. Demander approbation avant implémentation

⚠️ CRITIQUE : Ne PAS commencer l'implémentation sans approbation explicite.

Attendre confirmation avant de continuer.

3. Lire le plan

Lire le fichier plan complet
Extraire les étapes d'implémentation
Identifier les fichiers à créer/modifier

4. Implémenter étape par étape

Pour chaque étape du plan :

Créer une todo pour l'étape
Lire les fichiers concernés (si modification)
Implémenter le code
Respecter :
- Les conventions du projet (CLAUDE.md)
- Les patterns identifiés dans l'exploration
- Les décisions prises en phase 2
Marquer la todo comme complétée

5. Créer les tests

Créer les tests unitaires spécifiés dans le plan
Suivre l'approche TDD si possible
S'assurer que les tests passent

6. Vérifications qualité

Lancer les vérifications :

make phpstan    # PHPStan niveau 9
make fix        # Formatage PSR-12

⚠️ Corriger TOUTES les erreurs PHPStan avant de continuer.

7. Mettre à jour le workflow state

8. Rapport

Règles

Approbation obligatoire avant de commencer
PHPStan = 0 erreurs (bloquant CI)
Respecter le plan (pas d'improvisation)
Tests pour chaque composant
Conventions françaises pour les variables et documentation

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

7d ago First seen · 138 lines · 15 tokens per session scan A 017b009b2214

Subscribe to this mod's changes

dev:code is a skill published in the GitHub repository atournayre/claude-marketplace (9 stars, last pushed 6mo ago), licensed MIT. It adds 15 tokens to every session and 1,223 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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